Alaska is forecast to have well above average temperatures, along with breezy and dry conditions for the northern Interior. Isolated to scattered thunderstorms with frequent lightning are also forecast. A cooler, drier air mass is forecast to move into the Northwest. California should see little change from Wednesday, with the Central Valley seeing relative humidity in the mid-teens to around 20%. The northern and central Rockies are forecast to see showers and thunderstorms ahead of the drier air that moves in late today. The Great Basin and southern Idaho are forecast to see cooler and drier conditions, with relative humidity around 10%, along with a gusty west wind creating critical fire weather conditions. Severe weather is probable in the High Plains, with the storms moving into the central and northern Plains late in the day. The Mojave and Sonoran Deserts will remain hot with low relative humidity, while the greater Four Corners will see a slight cool down, as well as showers and thunderstorms. While there are some showers and thunderstorms possible for the northern Mississippi River Valley and New England, the Eastern Area should remain mostly dry. Mostly dry and hot conditions will continue for Texas. The Gulf Coast, Lower Mississippi River Valley, and the Atlantic Coast states are forecast to see showers and thunderstorms keeping the area slightly cooler and moister, although still hot. National Predictive Services Outlook 6 Minutes for Safety: The 6 Minutes for Safety topic of the day is LCES – June 26, 1990.